S e t t i n g s51Fixed dialing — to restrict your outgoing calls to selected phone numbers if thisfunction is supported by your SIM card. When the fixed dialing is on, GPRSconnections are not possible except while sending text messages over a GPRSconnection. In this case, the recipient’s phone number and the message centernumber must be included in the fixed dialing list.Closed user group — to specify a group of people whom you can call and who cancall you (network service)Security level > Phone — to set the phone to ask for the security code whenevera new SIM card is inserted into the phone. If you select Memory, the phone asksfor the security code when the SIM card memory is selected, and you wantto change the memory in use.Access codes — to change the security code, PIN code, UPIN code, PIN2 code,or restriction passwordCode in use — to select whether the PIN code or UPIN code should be activeAuthority certificates or User certificates — to view the list of the authorityor user certificates downloaded into your phone. See "Certificates," p. 79.Security module settings — to view Security module details, activate Module PINrequest, or change the module PIN and signing PIN. See also "Access codes,"p. 10.■ Phone software updatesYour service provider may send phone software updates over the air directly to yourdevice (network service). This option may not be available, depending on your phone.Warning: If you install a software update, you cannot use the device, evento make emergency calls, until the update is completed and the deviceis restarted. Be sure to backup data before accepting a software update.SettingsTo allowed or disallow phone software updates, select Menu > Settings >Configuration > Device manager settings > Service provider software updatesand following options:Always allow — to perform all software downloads and updates automaticallyAlways reject — to decline all software updatesConfirm first — to perform software downloads and updates only after yourconfirmation (default setting)
